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#1 (permalink) |
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Moderator Emeritus
Magical Hall Monitor Join Date: Jun 2001
Location: In my house
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Why does one need a progressive scan player?
Okay, I tried to do a search (here & HTF) but I was having trouble finding an answer...so I will put it to the great members of the board.
Why do you need a progressive scan player if you have an HDTV. I know that you do...I just don't really know why. And, if whoever answers this (tomdkat, chromy, another person with a vast amount of knowledge) could you put this in simple laymens terms. Thanks guys...
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#3 (permalink) |
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Actor
Join Date: Jun 2000
Location: Shell Beach, CA, USA
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I guess the easiest way to explain it is that it creates a smoother picture than interlaced video. The picture also is able to handle motion better. It also gets rid of the scan line effect found with normal TVs.
However, all HDTV's have progressive scanning built in to them. So a progressive scan player is not a necessity, however, dvd players usually have better progressive processors in them than most tvs.
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#4 (permalink) |
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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I tend to like this description of progressive scan as it has animated pictures...
![]() As for why it's good to have progressive scan capability in a DVD player, it's for these primary reasons:
If you have a DVD player with a DVI output and a HD display with a DVI input, you now have a purely digital video "path" so the digital to analog conversion issues are eliminated in the link between the DVD player and the display. Peace....
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#5 (permalink) | |
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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). I'm not sure how the built-in de-interlacer has improved in the 2003 or later models, if at all.Pioneer Elite HD monitors have great de-interlacers and the Pioneer Elite PRO 510 faired well against progressive scan DVD players! ![]() Peace...
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#6 (permalink) |
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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Tomkat's right the deinterlacing solution in the Mits models prior to thew 2004 lineup was very much subpar. The 2004 models now have a better deinterlacing solution as well as much better stretch modes. The improvements pu them right up there with the Pioneer Elite for a fravtion of the price.
Now about the need for a progressive scan DVD player; it's my opinion that it's not that much of a necessity any more. The reason is that most brands of HDTV monitors will now scale as well as deinterlace the incoming signal. Mits is one of the few brands left that dispays a native 480p signal as sent from the DVD player so if you have a player with the Faroudja chip in it you'll get a fantastic image. However if you own a brand of TV that takes that wonderful deinterlaced image and processes in order to scale it to 540p, 720p, 960i or 1080i for display then what good is it? If your TV does this to the signal you might as well just feed it the original interlaced signal straight off the DVD since the superior deinterlacer in the player is not even being used for display. In otherwords if your TV scales the signal to 540p for display it will do this regardless if the signal being fed to it is 480p or 480i. The TV is still processing the signal and defeating the purpose of the progressive conversion in the player.
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#7 (permalink) | |
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Actor
Join Date: Jun 2000
Location: Microsoft country
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My non-elite Pioneer is one of the sets with a lousy line doubler, and it was progressive scan, non 16x9 enhancement or newer transfers from hi-def masters that made the biggest single difference in image quality. RD |
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#8 (permalink) | |
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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Another question is can a DVD player upscale to 1080i equal to or better than a HDTV, if you could configure it to upconvert all inputs to 1080i? Can a progressive scan DVD player that can output a 720p signal upconvert better than a HDTV that supports 720p as a native resolution? Peace...
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#9 (permalink) |
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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Yes but Tom those aren't really true progressive players now are they. They really are players that scale the image to a new resolution which is different than a player that is true progressive scan and only deinterlaces from 480i to 480p. On top of that I believe that there are already some HDTVs from Pioneer, Hitachi and Sony that have built in scalers and take any scan rate and display at either 720 or 1080i and they might do as good if not better job than those DVD players you mention.
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#10 (permalink) | ||
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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What makes you think progressive scan is for 480 resolution only? Peace...
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#11 (permalink) |
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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You're right that didn't come out the way I intended it. What I meant was that if you have a player that only does deinterlacing such as the type we were talking about at the start of this thread this is what I mean as true progressive player. The ones that do progressive and scale like the ones you're refering to are progressive players but their true purpose is for scaling the resolution to HD from SD. On the Samsung if you don't use the DVI port you aren't even using the Faroudja deinterlacing chip.
So my whole point is that many brands are improving their internal line doublers and are also now scaling to HD resolutions or at least to 540p so the need for a progressive player is not as great as it was a year or so ago. Now if you were to buy the new Denon 5900 which deinterlaces, scales, does SACD and DVDA then there might be a valid reason but to get a POS $100 progressive player I think is a waste.
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#12 (permalink) | |||
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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To me, scaling and de-interlacing are separate functions and therefore separate issues. For all I know the Bravo D-1 can scale very well but de-interlace horribly or vice-versa.These players are also capable of outputting a 480p signal in addition to the upconverted ones. ![]() Quote:
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![]() #2, for those who own HDTVs but don't have progressive scan DVD players, the players I mention as well as non-upconverting progressive scan DVD players are still VERY useful #3, as for the "new wave" of HDTVs coming out, with the TVs having DVI inputs and the DVD players having DVI outputs, a 100% digital video "path" sort of changes the "where is it best to deinterlace" debate since the analog conversion on the DVD player side is eliminated. I understand your point, so don't think I don't, but I just don't think issue is really that "cut and dry". ![]() Peace...
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#13 (permalink) |
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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Of course the issue is never cut and dry. Everyone will need to make their own decision on the value of the player they decide to buy. They just need to understand that if they own a new HDTV with a better deinterlacing chip and scaling capabilities they most likely will not see the big difference like those of us who bought a player with the Faroudja deinterlacing chip and connected it to an older HDTV with poor deinterlacing and no scaling. I've seen so many posts lately from new owners who wonder why they bothered to upgrade because they can't see a noticeable increase in PQ and it almost always has to do with the fact that their TV is not using the deinterlacing of the player because the TV is converting to 540p or 1080i. The other reason can be that they are buying a $100 progressive player with equal or worse deinterlacing compared to the one inside the TV.
As for the Samsung 931 here's a quote from the Home Theater Spot from a Spottie editor who also is part of the Secret's Shootout on DVD Players. Quote: ------------------------------------------------------------------------ It's stupid the DCDi only works with the DVI and not the component. I wonder if it looks bad in component. Anyone compare between component and DVI with this player yet? ------------------------------------------------------------------------ I brought up the same thing to Samsung when I first found out that this player was not using the Faroudja chip on the component outs. The reason I heard was that it would have increased the cost of the player $20 to add additional video DACs. With the current dearth of lower cost Faroudja-equipped players, Samsung could have greatly increased their market and therefore their sales by adding this. I mean, how many people would be put off by having to spend another $20? BTW, there is no comparison between the component and DVI outputs of this player. If you were only going to use the component outs, you'd be better off to pick up a Panasonic S35 for $100 and save some money. So to answer the original poster's question as to why a progressive player is needed; if you have an older HDTV the purchase of a quality player with the Faroudja deinterlacing chip and a MPEG decoder without the CUE bug will give you a much smoother image free of jaggies than you can get from an interlaced player letting your TV handle the progressive conversion. However if you have a newer model HDTV or one that does not display native 480p from the player the increase in PQ will be much less or not at all to most people. Sure there is one less conversion with a DVI player but unless the display is a fixed pixel LCD, plasma or DLP type display then the display has to convert it to analog for display anyway. Then if it then needs to convert to 540p or 1080i it's converting it again and still not using the 480p signal it was sent originally from the progressive player you thought you needed. The best thing is to buy from a place that will let you return it if you don't see the value in the upgrade. Also don't think that a $100 to $200 player is going to have dramatic increase in PQ. The days of the inexpensive Panny progresive players with a Faroudja chip inside are gone.
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#14 (permalink) | ||||||||
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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People's expectations must be taken into consideration when discussing these kinds of investments (in display or DVD player gear). Quote:
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I haven't read too many comments about the component video output of this player as those who bought it seemed most interested in the DVI output anyway.Quote:
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Assuming we're talking 480p over DVI to a CRT-based RPTV for now, we've got a digital path from the DVD player to the TV. It upconverts the video signal to 540p (or higher if configured to do so). I don't see why it wouldn't do this digitally since it's already got a digital video signal. Then it must convert that signal to analog for display. Depending on when the upconversion takes place, we can still be left with only one digital to analog conversion and the multiple conversions (as is the case with component video connections) is an added cause ot video quality degredation. In the case above where you stipulate current TVs (like my Toshiba 57HX81) that upconvert to 540p or higher, if they're using component video connections the 2 sets of analog to digital conversions that must be done add to the lack of picture quality "difference" since there will be some loss (so I've read) in those conversions. 480p over DVI upconverted to 540p or higher would probably yield better results than 480p over component upconverted to 540p or higher since the upconversion can be done digitally from a digital video source (I guess I've answered my own question from above... ).Quote:
I do agree with you 100% that finding a place with a good return policy is absolutely crucial to make sure one isn't "stuck" with something they don't want or like. ![]() Peace...
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#15 (permalink) |
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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Hey Tom I'll try to respond to some of your comments in detail over the weekend when I have more time but have you noticed that the original poster, Jerm, hasn't jumped back into the dicussion.
He posts the question and we try to answer but I wonder if we did or just confuse the matter even more. ![]()
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#16 (permalink) | |
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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![]() ![]() Have a great weekend.... Peace...
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#17 (permalink) | |||||||
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Actor
Join Date: Aug 2002
Location: Hardyston, NJ
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To wrap it up it does come down to the equipment you own and how sensitive you are to noticing these differences that are probably very minor to most eyes. they are there and can be pointed out and or measured with test equipment but the truth is we don't watch our DVDs with test gear and are usually so wrapped up in the story that we're not noticing the things that are wrong with the picture. Then on certain occasions we'll notice something on screen that is just not right and once we see it we always see it and try all we can to fix it or make it go away.
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#18 (permalink) | |
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Moderator Emeritus
Magical Hall Monitor Join Date: Jun 2001
Location: In my house
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Re: Why does one need a progressive scan player?
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#19 (permalink) | ||||||||
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Official Forum Warmonger
"Dial Tone" Join Date: Sep 2000
Location: Hayward, CA, USA
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Re: Why does one need a progressive scan player?
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The one general consensus that was reached was the Pioneer Elite HDTVs were about the only TVs where a difference in picture quality between a progressive scan DVD player and an interlaced player "feeding" the TV would be marginal given the great de-interlacing ability of the TV. Quote:
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